Available for work

Hi, I'm Davi Siqueira Tostes

>

Building robust back-end systems and modern web experiences. From event-sourced APIs to payment gateway integrations, I build systems that scale.

Get in touch->Resume
> about

About Me

// A developer who cares about the craft

I'm a Full Stack Developer with strong back-end expertise in C#/.NET Core and Golang, currently pursuing a Bachelor's degree in Information Systems (8th semester).

My professional journey spans from building ERP systems and payment gateway integrations to designing event-sourced architectures and real-time communication systems.

I thrive on solving complex problems with clean, scalable solutions. Whether it's crafting a REST API, setting up CI/CD pipelines on Azure, or building a React frontend, I bring the same attention to quality and performance.

/**

* I believe software should be built with intention. Clean architecture, well-defined contracts, and robust infrastructure aren't optional — they're what separate code that works from code that lasts.

*/
3+ YearsProfessional experience
4 CompaniesWorked with
8th SemInformation Systems
> projects

Projects

// Things I've built and shipped

full stack

Aguiar Store

E-commerce platform for football jerseys with a React/TypeScript/Tailwind frontend, Golang API backend, and Stripe payment integration.

ReactTypeScriptTailwind CSSGolangStripe
Live
tools

Go Mapper

Go package for mapping values between structs, inspired by AutoMapper from .NET. Uses reflection to minimize boilerplate code with an intuitive API for custom mappings.

GoReflection
Source
tools

Lazy Ollama

Terminal-based CLI for interacting with Ollama models. Features chat management, model switching, RAG support with embeddings, and special commands like LeetCode problem solving.

GoOllamaRAGEmbeddings
Source
frontend

htmask.js

Lightweight, zero-dependency JavaScript library for creating input masks on HTML elements. Declarative API using mask attributes for phone numbers, dates, and custom patterns.

JavaScriptVanilla JS
Source
tools

Toast

Neovim plugin for AI-powered in-buffer code transformations using OpenCode CLI. Transform code with natural language prompts directly in your editor.

LuaNeovimOpenCode
Source
> skills

Skills

// Technologies I work with daily

skills.ts
const frontend = [
  "React",
  "TypeScript",
  "Angular",
  ...
];
ReactTypeScriptAngularTailwind CSSFlutter
> experience

Experience

// Where I've been building things

> contact

Contact

// Let's build something together

Have a project in mind, want to collaborate, or just want to say hi? Drop me a message and I'll get back to you as soon as possible.

location

Brazil